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        <h1 class="title">react/react防淘宝评分组件</h1>
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            <span>三月 26, 2024</span>
            
  <ul class="post-tags-list" itemprop="keywords"><li class="post-tags-list-item"><a class="post-tags-list-link" href="/tags/react/" rel="tag">react</a></li><li class="post-tags-list-item"><a class="post-tags-list-link" href="/tags/%E5%B0%8F%E7%A8%8B%E5%BA%8F/" rel="tag">小程序</a></li><li class="post-tags-list-item"><a class="post-tags-list-link" href="/tags/%E8%AF%84%E5%88%86/" rel="tag">评分</a></li></ul>


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            <h3 id="效果图"><a href="#效果图" class="headerlink" title="效果图"></a>效果图</h3><p><img src="/static/images/20200709173603.png" alt=""></p>
<h3 id="StarScore-tsx"><a href="#StarScore-tsx" class="headerlink" title="StarScore.tsx"></a>StarScore.tsx</h3><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br></pre></td><td class="code"><pre><span class="line">import Taro from &quot;@tarojs&#x2F;taro&quot;</span><br><span class="line">import &#123; View &#125; from &quot;@tarojs&#x2F;components&quot;</span><br><span class="line">import ImageIcon from &quot;~&#x2F;components&#x2F;Image&#x2F;Icon&quot;</span><br><span class="line">import &quot;.&#x2F;StarScore.less&quot;</span><br><span class="line"></span><br><span class="line">interface Props &#123;</span><br><span class="line">  &#x2F;**</span><br><span class="line">   * 分数</span><br><span class="line">   *&#x2F;</span><br><span class="line">  score: number</span><br><span class="line"></span><br><span class="line">  &#x2F;**</span><br><span class="line">   * 分数改变事件</span><br><span class="line">   *&#x2F;</span><br><span class="line">  onChange?: (score: number) &#x3D;&gt; void</span><br><span class="line"></span><br><span class="line">  &#x2F;**</span><br><span class="line">   * 图标大小</span><br><span class="line">   *&#x2F;</span><br><span class="line">  size?: number</span><br><span class="line"></span><br><span class="line">  &#x2F;**</span><br><span class="line">   * 最多几颗星星</span><br><span class="line">   *&#x2F;</span><br><span class="line">  max?: number</span><br><span class="line"></span><br><span class="line">  &#x2F;**</span><br><span class="line">   * 能不能点击</span><br><span class="line">   *&#x2F;</span><br><span class="line">  complete?: boolean</span><br><span class="line"></span><br><span class="line">  &#x2F;**</span><br><span class="line">   * 是否显示tip</span><br><span class="line">   *&#x2F;</span><br><span class="line">  showTip?: boolean</span><br><span class="line"></span><br><span class="line">  &#x2F;**</span><br><span class="line">   * tip数组，长度与max对应</span><br><span class="line">   *&#x2F;</span><br><span class="line">  tips?: Array&lt;string&gt;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line">const MAX &#x3D; 5</span><br><span class="line">export default class StarScore extends Taro.Component&lt;Props&gt; &#123;</span><br><span class="line">  static defaultProps &#x3D; &#123;</span><br><span class="line">    complete: true</span><br><span class="line">  &#125;</span><br><span class="line"></span><br><span class="line">  static externalClasses &#x3D; [&quot;item-class&quot;, &quot;container-class&quot;]</span><br><span class="line"></span><br><span class="line">  onChange(score: number) &#123;</span><br><span class="line">    if (this.props.onChange &amp;&amp; !this.props.complete) this.props.onChange(score)</span><br><span class="line">  &#125;</span><br><span class="line"></span><br><span class="line">  render() &#123;</span><br><span class="line">    let &#123; score &#125; &#x3D; this.props</span><br><span class="line">    const &#123;</span><br><span class="line">      size &#x3D; 16,</span><br><span class="line">      max &#x3D; MAX,</span><br><span class="line">      tips &#x3D; [&quot;非常差&quot;, &quot;差&quot;, &quot;一般&quot;, &quot;好&quot;, &quot;非常好&quot;],</span><br><span class="line">      showTip &#x3D; false</span><br><span class="line">    &#125; &#x3D; this.props</span><br><span class="line">    score &#x3D; Math.floor(score)</span><br><span class="line">    return (</span><br><span class="line">      &lt;View className&#x3D;&quot;container container-class&quot;&gt;</span><br><span class="line">        &#123;new Array(max).fill(0).map((_item: number, key: number) &#x3D;&gt; &#123;</span><br><span class="line">          return (</span><br><span class="line">            &lt;View</span><br><span class="line">              key&#x3D;&#123;&#96;score-$&#123;key&#125;&#96;&#125;</span><br><span class="line">              className&#x3D;&quot;item item-class&quot;</span><br><span class="line">              onClick&#x3D;&#123;this.onChange.bind(this, key + 1)&#125;</span><br><span class="line">            &gt;</span><br><span class="line">              &#123;score &gt;&#x3D; key + 1 ? (</span><br><span class="line">                &lt;ImageIcon</span><br><span class="line">                  data-key&#x3D;&#123;key + 1&#125;</span><br><span class="line">                  data-score&#x3D;&#123;score&#125;</span><br><span class="line">                  name&#x3D;&quot;StarChecked&quot;</span><br><span class="line">                  size&#x3D;&#123;size&#125;</span><br><span class="line">                &#x2F;&gt;</span><br><span class="line">              ) : (</span><br><span class="line">                &lt;ImageIcon</span><br><span class="line">                  data-key&#x3D;&#123;key + 1&#125;</span><br><span class="line">                  data-score&#x3D;&#123;score&#125;</span><br><span class="line">                  name&#x3D;&quot;Star&quot;</span><br><span class="line">                  size&#x3D;&#123;size&#125;</span><br><span class="line">                &#x2F;&gt;</span><br><span class="line">              )&#125;</span><br><span class="line">            &lt;&#x2F;View&gt;</span><br><span class="line">          )</span><br><span class="line">        &#125;)&#125;</span><br><span class="line">        &#123;showTip &amp;&amp; &lt;View&gt;&#123;tips[score - 1]&#125;&lt;&#x2F;View&gt;&#125;</span><br><span class="line">      &lt;&#x2F;View&gt;</span><br><span class="line">    )</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<h3 id="StarScore-less"><a href="#StarScore-less" class="headerlink" title="StarScore.less"></a>StarScore.less</h3><figure class="highlight less"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line"><span class="selector-class">.container</span> &#123;</span><br><span class="line">  <span class="attribute">height</span>: <span class="number">24px</span>;</span><br><span class="line"></span><br><span class="line">  <span class="selector-class">.item</span> &#123;</span><br><span class="line">    <span class="attribute">margin-right</span>: <span class="number">7px</span>;</span><br><span class="line">    <span class="attribute">display</span>: inline-block;</span><br><span class="line"></span><br><span class="line">    <span class="selector-tag">&amp;</span><span class="selector-pseudo">:last-child</span> &#123;</span><br><span class="line">      <span class="attribute">margin-right</span>: <span class="number">0</span>;</span><br><span class="line">    &#125;</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<h3 id="使用"><a href="#使用" class="headerlink" title="使用"></a>使用</h3><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br></pre></td><td class="code"><pre><span class="line">import Taro from &quot;@tarojs&#x2F;taro&quot;</span><br><span class="line">import &#123; View &#125; from &quot;@tarojs&#x2F;components&quot;</span><br><span class="line">import StarScore from &quot;~&#x2F;components&#x2F;StarScore&#x2F;StarScore&quot;</span><br><span class="line"></span><br><span class="line">interface Props &#123;&#125;</span><br><span class="line"></span><br><span class="line">export default class Example extends Taro.Component&lt;Props&gt; &#123;</span><br><span class="line">  config: Taro.Config &#x3D; &#123;</span><br><span class="line">    navigationBarTitleText: &quot;测试页面&quot;</span><br><span class="line">  &#125;</span><br><span class="line"></span><br><span class="line">  state &#x3D; &#123;</span><br><span class="line">    score: 4</span><br><span class="line">  &#125;</span><br><span class="line">  render() &#123;</span><br><span class="line">    const &#123; score &#125; &#x3D; this.state</span><br><span class="line">    return (</span><br><span class="line">      &lt;View&gt;</span><br><span class="line">        &lt;StarScore</span><br><span class="line">          score&#x3D;&#123;score&#125;</span><br><span class="line">          showTip</span><br><span class="line">          complete&#x3D;&#123;false&#125;</span><br><span class="line">          size&#x3D;&#123;25&#125;</span><br><span class="line">          onChange&#x3D;&#123;val &#x3D;&gt; &#123;</span><br><span class="line">            this.setState(&#123;</span><br><span class="line">              score: val</span><br><span class="line">            &#125;)</span><br><span class="line">          &#125;&#125;</span><br><span class="line">        &#x2F;&gt;</span><br><span class="line">      &lt;&#x2F;View&gt;</span><br><span class="line">    )</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>


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